Mu-metal
thumb|Assortment of mu-metal shapes used in electronics, 1951 thumb|Five-layer mu-metal box. Each layer is about 5 mm thick. It reduces the effect of the Earth's magnetic field inside by a factor of 1500.
Article
7 sectionsContents
- Properties
- Application
- Examples
- Similar materials
- History
- References
- External links
thumb|Assortment of mu-metal shapes used in electronics, 1951 thumb|Five-layer mu-metal box. Each layer is about 5 mm thick. It reduces the effect of the Earth's magnetic field inside by a factor of 1500.
Mu-metal, or μ-metal, is a soft nickel–iron ferromagnetic alloy with very high permeability, which is used for shielding sensitive electronic equipment against static or low-frequency magnetic fields. The name came from the Greek letter mu (μ, (), which represents permeability in physics and engineering formulas.